Earlier quoted context omitted.
'For fun find a cyclist discussion somewhere where they complain about something like this and post a mildly worded suggestion and see what kind of response you get. I absolutely guarantee it won't be "yeah, you know what, maybe we should be observing traffic laws like we're supposed to"' The East Bay Bicycle Coalition, at least, explicitly tells bikers to abide by the laws, and offers classes in (amongst other thing…
Part of the problem is that people get bikes as kids, then as they got older just start using them on the road without any real understanding of the laws and regulations on bikes. They don't realize that it's a vehicle, there's no required driver training, or licensing or anything to ride a bike on the road like with a car. As kids you can kind of ride your bike wherever you want, as adults riders just sort of expand…
Note that the bicycle safety classes I mention above was not only free, they gave out free lights to boot!